Home / 74,681,993.40-111,959,094.36-28,656,891.84

Finding the Fourth Proportional to 74,681,993.40, 111,959,094.36 and 28,656,891.84

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Solution

The fourth proportional to 74,681,993.40, 111,959,094.36 and 28,656,891.84 is: 42,960,819.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,681,993.40 : 111,959,094.36 = 28,656,891.84 : x
  2. Step 2: Convert to fraction form
    74,681,993.40/111,959,094.36 = 28,656,891.84/x
  3. Step 3: Cross multiply
    74,681,993.40x = 111,959,094.36 × 28,656,891.84
  4. Step 4: Simplify right side
    74,681,993.40x = 3,208,399,657,578,874
  5. Step 5: Solve for x
    x = 3,208,399,657,578,874/74,681,993.40
  6. Step 6: Final answer
    x = 42,960,819.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.